 import java。io*;
 public class Member {
	 private String number;
	 private String name;
	 private int age;

	 public Member(String number,String name,int age){
		 this.name=name;
		 this.number=number;
		 this.age=age;
		}
	 @override
	 public String toString(){
		 return String.formate("(%s,%s,%d)",number,name,age);
	 }
	 public void save() throws IOExpection{
		 try(DataOutputStream(new FileOutputStream(nuimber))){
			 output.writeUTF(number);
			 output.write(name);
			 output.write(age);
		 }
	 }
	 public static Member load(String number)throws IOExpectio
